Last Exam is Tomorrow

And today I read this quote:

At any rate, the entire Guidance, from beginning to end - except the last paragraph - reads like a ukase.⁶

FN 6: [Ed.] For those who (like some of the editors of this casebook) are unacquainted with the word "ukase," it comes from czarist Russia and means fiat, an order by absolute and - by connotation, arbitrary - authority."

My question is: which editors of the casebook were familiar with the term "ukase"?